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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/impl-trait/universal_in_trait_defn_parameters.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/universal_in_trait_defn_parameters.rs b/src/test/ui/impl-trait/universal_in_trait_defn_parameters.rs new file mode 100644 index 000000000..23c217a8f --- /dev/null +++ b/src/test/ui/impl-trait/universal_in_trait_defn_parameters.rs @@ -0,0 +1,18 @@ +// run-pass + +use std::fmt::Debug; + +trait InTraitDefnParameters { + fn in_parameters(_: impl Debug) -> String; +} + +impl InTraitDefnParameters for () { + fn in_parameters(v: impl Debug) -> String { + format!("() + {:?}", v) + } +} + +fn main() { + let s = <() as InTraitDefnParameters>::in_parameters(22); + assert_eq!(s, "() + 22"); +} |